EP 3076762 A1 20161005 - LINE VOLTAGE COMPENSATION AC LED DRIVING DEVICE
Title (en)
LINE VOLTAGE COMPENSATION AC LED DRIVING DEVICE
Title (de)
WECHSELSTROM-LED-ANSTEUERUNGSVORRICHTUNG MIT LEITUNGSSPANNUNGSKOMPENSATION
Title (fr)
DISPOSITIF DE PILOTAGE DE DEL CA À COMPENSATION DE TENSION DE SECTEUR
Publication
Application
Priority
- CN 201310742304 A 20131230
- CN 2014093591 W 20141211
Abstract (en)
Disclosed is a line voltage compensation AC LED driving device. The line voltage compensation AC LED driving device comprises a line voltage compensation module and an AC LED driving module. The line voltage compensation module detects an output voltage of a rectifier bridge, and outputs a corresponding line voltage compensation reference voltage to the AC LED driving module according to the change of the output voltage of the rectifier bridge, and the AC LED driving module adjusts a driving current in real time according to the line voltage compensation reference voltage to keep the output power unchanged. In the present invention, the line voltage compensation module detects the output voltage of the rectifier bridge, and outputs the corresponding line voltage compensation reference voltage to the AC LED driving module according to the change of the output voltage of the rectifier bridge, and the AC LED driving module adjusts the driving current in real time according to the line voltage compensation reference voltage to keep the output power unchanged, and therefore the output luminous flux of a lamp can be basically unchanged, the luminance of the LED lamp is stable, and the voltage flicker of the LED lamp is eliminated.
IPC 8 full level
H05B 37/02 (2006.01); H05B 44/00 (2022.01)
CPC (source: EP US)
H05B 45/10 (2020.01 - EP US); H05B 45/30 (2020.01 - EP US); H05B 45/395 (2020.01 - EP US); H05B 45/48 (2020.01 - EP US); Y02B 20/30 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3076762 A1 20161005; EP 3076762 A4 20170726; CN 103763817 A 20140430; CN 103763817 B 20160601; US 2017034882 A1 20170202; US 9832822 B2 20171128; WO 2015101154 A1 20150709
DOCDB simple family (application)
EP 14875939 A 20141211; CN 201310742304 A 20131230; CN 2014093591 W 20141211; US 201415106726 A 20141211